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Abstract:

The present disclosure provides a transparent liquid crystal display
panel and a transparent liquid crystal display. The transparent liquid
crystal display panel includes a backlight module, a color filter
substrate and a TFT array substrate which are cell-assembled. Liquid
crystal is filled between the color filter substrate and the TFT array
substrate. Each pixel unit of the color filter substrate includes a
sub-pixel unit and a transparent pixel unit. A region on the TFT array
substrate that corresponds to the transparent pixel unit is transparent.
A region between the color filter substrate and the TFT array substrate
that corresponds to the transparent pixel unit is provided with a
transparent resin spacer. A region in the backlight module that
corresponds to the transparent pixel unit is a transparent region.

Claims:

1. A transparent liquid crystal display panel comprising a backlight
module, a color filter substrate and a thin film transistor (TFT) array
substrate which are cell-assembled, the color filter substrate and the
TFT array substrate being filled with liquid crystal therebetween,
wherein, the color filter substrate comprises a plurality of pixel units
each comprising a sub-pixel unit and a transparent pixel unit defined by
a black matrix; a region of the TFT array substrate corresponding to the
transparent pixel unit on the color filter substrate is transparent; a
transparent spacer is disposed between the color filter substrate and the
TFT array substrate at the region corresponding to the transparent pixel
unit; and a region of the backlight module corresponding to the
transparent pixel unit is a transparent region.

2. The transparent liquid crystal display panel according to claim 1,
wherein the transparent spacer contacts both the color filter substrate
and the TFT array substrate.

3. The transparent liquid crystal display panel according to claim 1,
wherein the backlight module is provided with backlight assemblies
therein and the backlight assemblies are disposed in a region other than
the region corresponding to the transparent pixel unit.

4. The transparent liquid crystal display panel according to claim 1,
wherein the TFT array substrate is provided with TFT assemblies thereon
and the TFT assemblies are disposed in a region other than the region
corresponding to the transparent pixel unit.

5. The transparent liquid crystal display panel according to claim 1,
wherein the black matrix formed on the color filter substrate has a
thickness of 0.6-1.6 μm; strips of the black matrix have a width of
7-9 μm; inter-gaps of the black matrix have a width of 28.5-31.5
μm; and the sub-pixel unit and the transparent pixel unit are disposed
in the inter-gaps of the black matrix.

6. The transparent liquid crystal display panel according to claim 1,
wherein the color filter substrate is provided with a color filter at the
sub-pixel unit and a transparent resin layer at the transparent pixel
unit.

7. The transparent liquid crystal display panel according to claim 6,
wherein both the color filter and the transparent resin layer have a
thickness of 1.7-2.7 μm.

8. The transparent liquid crystal display panel according to claim 6,
wherein a planarization layer is formed on the black matrix, the color
filter and the transparent resin layer on the color filter substrate, and
parts of the planarization layer above the color filter and the
transparent resin layer have a thickness of 0.5-1.5 μm.

9. The transparent liquid crystal display panel according to claim 1,
wherein the transparent spacer between the color filter substrate and the
TFT array substrate has a height of 3-5 μm.

10. A transparent liquid crystal display comprising a transparent liquid
crystal display panel comprising a backlight module, a color filter
substrate and a thin film transistor (TFT) array substrate which are
cell-assembled, the color filter substrate and the TFT array substrate
being filled with liquid crystal therebetween, wherein, the color filter
substrate comprises a plurality of pixel units each comprising a
sub-pixel unit and a transparent pixel unit defined by a black matrix; a
region of the TFT array substrate corresponding to the transparent pixel
unit on the color filter substrate is transparent; a transparent spacer
is disposed between the color filter substrate and the TFT array
substrate at the region corresponding to the transparent pixel unit; and
a region of the backlight module corresponding to the transparent pixel
unit is a transparent region.

Description:

[0002] With increasing development of liquid crystal technology, liquid
crystal display products are playing a more and more important role in
our lift. Liquid crystal products are broadly accepted due to their
advantages such as low dissipation of energy, ease of flatness and
environment protection. With the development of technologies, even higher
end display products have drawn attention of people.

[0005] One embodiment of the present disclosure provides a transparent
liquid crystal display panel comprising a backlight module, a color
filter substrate and a thin film transistor (TFT) array substrate which
are cell-assembled, the color filter substrate and the TFT array
substrate being filled with liquid crystal therebetween, wherein, the
color filter substrate comprises a plurality of pixel units each
comprising a sub-pixel unit and a transparent pixel unit defined by a
black matrix; a region of the TFT array substrate corresponding to the
transparent pixel unit on the color filter substrate is transparent; a
transparent spacer is disposed between the color filter substrate and the
TFT array substrate at the region corresponding to the transparent pixel
unit; and a region of the backlight module corresponding to the
transparent pixel unit is a transparent region.

[0006] In one example, the transparent spacer contacts both the color
filter substrate and the TFT array substrate.

[0007] In one example, the backlight module is provided with backlight
assemblies therein and the backlight assemblies are disposed in a region
other than the region corresponding to the transparent pixel unit.

[0008] In one example, the TFT array substrate is provided with TFT
assemblies thereon and the TFT assemblies are disposed in a region other
than the region corresponding to the transparent pixel unit.

[0009] In one example, the black matrix formed on the color filter
substrate has a thickness of 0.6-1.6 μm; strips of the black matrix
have a width of 7-9 μm; inter-gaps of the black matrix have a width of
28.5-31.5 μm; and the sub-pixel unit and the transparent pixel unit
are disposed in the inter-gaps of the black matrix.

[0010] In one example, the color filter substrate is provided with a color
filter at the sub-pixel unit and a transparent resin layer at the
transparent pixel unit.

[0011] In one example, both the color filter and the transparent resin
layer have a thickness of 1.7-2.7 μm.

[0012] In one example, a planarization layer is formed on the black
matrix, the color filter and the transparent resin layer on the color
filter substrate, and parts of the planarization layer above the color
filter and the transparent resin layer have a thickness of 0.5-1.5 μm.

[0013] In one example, the transparent spacer between the color filter
substrate and the TFT array substrate has a height of 3-5 μm.

[0014] Another embodiment of the present disclosure provides a transparent
liquid crystal display comprising a transparent liquid crystal display
panel comprising a backlight module, a color filter substrate and a thin
film transistor (TFT) array substrate which are cell-assembled, the color
filter substrate and the TFT array substrate being filled with liquid
crystal therebetween, wherein, the color filter substrate comprises a
plurality of pixel units each comprising a sub-pixel unit and a
transparent pixel unit defined by a black matrix; a region of the TFT
array substrate corresponding to the transparent pixel unit on the color
filter substrate is transparent; a transparent spacer is disposed between
the color filter substrate and the TFT array substrate at the region
corresponding to the transparent pixel unit; and a region of the
backlight module corresponding to the transparent pixel unit is a
transparent region.

[0015] In the transparent liquid crystal display panel and the transparent
liquid crystal display provided in embodiments of the present disclosure,
a lot of transparent pixel units are provided on the color filter
substrate, regions of the TFT (Thin Film Transistor) array substrate and
the backlight module that correspond to the transparent pixel units are
also transparent, and regions between the color filter substrate and the
TFT array substrate that correspond to the transparent pixel units are
provided with transparent resin spacers. As such, the liquid crystal
display panel is manufactured with many transparent regions, which
realizes a transparent visual effect and can bring about strong visual
impact in use and leave a deep impression for users.

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to clearly illustrate the technical solution of the
embodiments of the invention, the drawings of the embodiments will be
briefly described in the following; it is obvious that the described
drawings are only related to some embodiments of the invention and thus
are not limitative of the invention.

[0017] FIG. 1 is a structural representation of a transparent liquid
crystal display panel provided in an embodiment of the present
disclosure;

[0018] FIG. 2 is a structural representation of a color filter substrate
in a transparent liquid crystal display panel provided in an embodiment
of the present disclosure.

DETAILED DESCRIPTION

[0019] In order to make objects, technical details and advantages of the
embodiments of the invention apparent, the technical solutions of the
embodiments will be described in a clearly and fully understandable way
in connection with the drawings related to the embodiments of the
invention. Apparently, the described embodiments are just a part but not
all of the embodiments of the invention. Based on the described
embodiments herein, those skilled in the art can obtain other
embodiment(s), without any inventive work, which should be within the
scope of the invention.

[0020] As shown in FIG. 1, a transparent liquid crystal display panel 1 is
provided in an embodiment of the present disclosure, which includes: a
color filter substrate 11 and a thin film transistor (TFT) array
substrate 12 which are cell-assembled, with liquid crystal 18 filled
therebetween.

[0021] Furthermore, the color filter substrate 11 includes a plurality of
pixel units. For example, the plurality of pixel units are disposed in
two dimensional array on the color filter substrate 11. Each pixel unit
includes a sub-pixel unit 13, 14, 15 and a transparent pixel unit 16.
Taking what is shown in FIG. 1 as an example, the sub-pixel units may
include a red pixel unit 13, a green pixel unit 14 and a blue pixel unit
15.

[0022] It is worthy to note that a sub-pixel unit with configuration
including three primary colors, red, green and blue is described in the
embodiments of the present disclosure only as an example. Nevertheless,
the number of sub-pixel units included in each pixel unit and the color
of sub-pixel units are not limited thereto. For example, each pixel unit
may include therein one, two or more than four sub-pixel units. Sub-pixel
units may be of other colors as well.

[0023] Sub-pixel units 13, 14, 16 and transparent pixel units 16 on the
color filter substrate 11 are defined by a black matrix 112. In other
words, the sub-pixel units 13, 14 and 16 and the transparent pixel units
16 are surrounded by the black matrix. For example, the black matrix may
be a grid formed by a plurality of light-blocking strips intersecting
each other. Illustratively, as shown in FIG. 2, the glass substrate 111
of the color filter substrate 11 is formed thereon with a black matrix
112 of a thickness 0.6-1.6 μm, in which the width H of strips of the
black matrix, namely the width of the black matrix between sub-pixel
units or between a sub-pixel unit and a transparent pixel unit, may be
7-9 μm, and the inter-gap width H of the black matrix may be 28.5-31.5
μm. For example, the sub-pixel units 13, 14 and 16 and the transparent
pixel unit 16 are disposed at the inter-gaps of the black matrix.

[0024] In this embodiment, the color filters 113, 114 and 115 (e.g.,
formed of color filtering resin layers) used by the three primary color
filter layers and the transparent resin layer 116 used by the transparent
pixel units are coated in inter-gaps in the black matrix 112. The
thickness of color filters and the thickness of transparent resin layers
may be 1.7-2.7 μm. Furthermore, a planarization layer 117, such as a
glue coating layer, is formed on the black matrix 112, the color filters
113, 114, 115 and the transparent resin layer 116. For example, parts of
the planarization layer formed on the color filters 113, 114, 115 or the
transparent resin layer 116 have a thickness of 0.5-1.5 μm.

[0025] As shown in FIG. 1, on the TFT array substrate 12, regions
corresponding to transparent pixel units 16 are transparent. For example,
these regions may not be provided with TFTs. That is, TFT components on
the TFT array substrate 12 are disposed in regions other than the regions
corresponding to the transparent pixel units on the color filter
substrate 11. In this way, light may pass through regions of the TFT
array substrate 12 which correspond to transparent pixel units.

[0026] Liquid crystal 18 is filled between the color filter substrate 11
and the TFT array substrate 12 except for regions corresponding to
transparent pixel units 16 that is provided with transparent spacers 17.
The material for transparent spacers may be transparent resin and their
height may be 3-5 μm. For example, the transparent spacers 17 may
contact both the color filter substrate 11 and the TFT array substrate
12. Therefore, there may not be any liquid crystal in regions
corresponding to transparent pixel units. In this embodiment, between the
color filter substrate 11 and the TFT array substrate 12, regions
corresponding to red pixel units 13, green pixel units 14 and blue pixel
units 15 are provided with liquid crystal 18, regions corresponding to
transparent pixel units 16 are provided with transparent resin spacers
17, thereby reducing consumption of liquid crystal and saving
manufacturing cost.

[0027] It is worthy to note that after transparent spacers 17 are disposed
between the color filter substrate 11 and the TFT array substrate 12, no
additional spacers are needed for regions of red pixel units 13, green
pixel units 14 and blue pixel units 15. Therefore, the above-mentioned
transparent spacers 17 may function as spacers for maintaining cell
thickness of liquid crystal display panel.

[0028] In addition, embodiments according to the present disclosure
further include a backlight module as a light source for the liquid
crystal display panel. For example, the backlight module may be disposed
on one side of the TFT array substrate 12 such that light emitted from
the backlight may pass the TFT array substrate 12, the liquid crystal
layer 18 and the color filter substrate 11 successively. Accordingly, the
backlight module (not shown in FIG. 1) emits light only towards regions
of red pixel units 13, green pixel units 14 and blue pixel units 15.
Regions of backlight that correspond to transparent pixel units 16 are
transparent regions and do not emit light. To ensure that these regions
are transparent, for example, no backlight module such as reflection
plate is disposed in the regions. That is, backlight components or
assemblies in the backlight module are disposed in regions other than the
regions corresponding to transparent pixel units. Disposing no reflection
plate in regions of the backlight module that correspond to transparent
pixel units may ensure that these regions do not emit light as well,
thereby ensuring light transmittance.

[0029] For the transparent liquid crystal display panel according to
embodiments of the present disclosure, sub-pixel units 13, 14 and 15
modulate liquid crystal of individual sub-pixel units according to the
control of image signal, thereby displaying images, while transparent
pixel units may transmit ambient light from backside of the liquid
crystal display panel. The liquid crystal display panel is manufactured
with many transparent regions, which realizes transparent visual effect
and can bring about strong visual impact in use and leave a deep
impression for users.

[0030] Furthermore, after cutting the above-mentioned transparent liquid
crystal display panel and assembling electronic elements, finished
products of transparent liquid crystal displays may be obtained. Any
appropriate processes and elements in the art may be used for cutting the
panel and assembling electronic elements, no further description will be
provided.

[0031] A manufacturing process of the above-mentioned transparent liquid
crystal display panel will be explained below, taking sub-pixel units of
three primary colors as an example too. The method includes steps of:

[0032] S101, Preparing a color filter substrate.

[0033] Specifically, a black matrix may be formed first by patterning
process on a glass substrate, which has a thickness of 0.6-1.6 μm,
strip width of 7-9 μm and inter-gap width of 28.5-31.5 μm.

[0035] Finally, a planarization layer, such as glue coating layer, is
coated on the black matrix, the color filter and the transparent resin
layer. Parts of the planarization layer above the color filter and the
transparent resin layer have a thickness of 0.5-1.5 μm.

[0036] S102. Preparing a TFT array substrate.

[0037] Specifically. while processing and preparing TFT components by
patterning process on the glass substrate, regions corresponding to
transparent pixel units on the color filter substrate may not be formed
with TFT components. That is, TFT components on the TFT array substrate
are formed in regions other than the regions corresponding to transparent
pixel units. In addition, regions on the TFT array substrate that
correspond to transparent pixel units are formed to be transparent.

[0038] There is no sequential relationship between steps S101 and S102,
which may be performed at the same time or sequentially.

[0039] S103. Forming a liquid crystal alignment layer on the color filter
substrate and the TFT array substrate. For example, the color filter
substrate liquid crystal alignment layer and the TFT array substrate
liquid crystal alignment layer are formed by coating a light alignment
material on the color filter substrate and the TFT array substrate and
exposing them to polarized ultraviolet light with a wavelength of 254 nm
and light energy of 1-10 J/cm2. In addition, the material for
forming the liquid crystal alignment layer is not limited to the light
alignment material, and alignment layer materials suitable for friction
alignment may also be used.

[0040] S104. Forming transparent resin spacers in regions corresponding to
transparent pixel units on the color filter substrate or the TFT array
substrate. For example, the transparent resin spacers may have a
thickness of 1.7-2.7 μm.

[0041] S105. Filling liquid crystal material into a cell formed by the
color filter substrate and the TFT array substrate. For example, the
liquid crystal material may be dropped onto the color filter substrate or
the TFT array substrate first, then the color filter substrate or the TFT
array substrate are cell-assembled; alternatively, it is also possible to
cell-assemble the color filter substrate and the TFT array substrate
first, and then liquid crystal material is injected between the color
filter substrate and the TFT array substrate.

[0042] The transparent liquid crystal display panel manufactured with this
method has many transparent regions, which realizes transparent visual
effect and can bring about strong visual impact in use and leave a deep
impression for users.

[0043] The foregoing are merely exemplary embodiments of the invention,
but are not used to limit the protection scope of the invention. The
protection scope of the invention shall be defined by the attached
claims.